<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>Title</title>
        <link rel="stylesheet" href="css/板块划分.css" type="text/css">
    </head>
    <body>
        <thead>
        <!--头部-->
        <div class="header s"></div>
        <!--导航-->
        <!--通栏只需要设置高度，宽度令其自动扩充-->
        <div class="nav">
            <div class="nav-1 s"></div>
        </div>
        <!--图片-->
        <div class="b_img"></div>
        </thead>
        <tbody>
        <div class="news s"></div>
        <div class="project s"></div>
        </tbody>
        <tfoot>
        <div class="foot1"></div>
        <div class="foot2 s"></div>
        </tfoot>
    </body>
</html>